SOIL MOISTURE TRANSFER BY A THERMO-OSMOTIC PROCESS IN A FREEZING SOIL SYSTEM

The changes are reviewed that take place when a soil water system is subjected to freezing. The thermal agitation which loosens up water molecules, increasing their thermal motion and creating a "diffuse" double layer, is also reviewed. Experimental studies are described on freezing soil systems. The experiments made provision for groundwater as a source of water supply for the freezing soil system, and the laterally insulated soil specimens were frozen from top to bottom. The soil type used in the experiments is a frost prone, silty glacial outwash soil of New Jersey. The experimental results are graphically illustrated and tabulated. Based on these experiments, various soil moisture transfer mechanisms were formulated and the intervals of their existence as a function of the experimental soil porosity were verified. The observation was made that between porosities of about n=60 percent and n=100 percent, vapor transfer is a relatively ineffective soil moisture transfer mechanism. The studies also lead to the establishment of the concept of a soil freezing system theoretically and experimentally as a thermal system.

  • Supplemental Notes:
    • Symposium on Frost Action on Roads, Paris (1973).
  • Corporate Authors:

    Organisation for Economic Co-operation and Development (OECD)

    2, rue André Pascal
    Paris,   France  75775 Paris Cedex 16
  • Authors:
    • Jumikis, A R
  • Conference:
  • Publication Date: 1973-10

Media Info

  • Features: Figures; References;
  • Pagination: p. 317-327
  • Serial:
    • Volume: 1

Subject/Index Terms

Filing Info

  • Accession Number: 00260030
  • Record Type: Publication
  • Report/Paper Numbers: Conf Paper
  • Files: TRIS
  • Created Date: Sep 30 1974 12:00AM